| Bibliography | |
| Título | Treaty text and annual annotations by the Legal Adviser's Office of the Department of State |
| Autor | MARTINDALE/HUBBELL LAW DIGEST |
| Año de edición | 1991 |
| Periódico | Canadian and International Digest |
| Referencia de página | 1991 edition, Part VI: Selected International Conventions to which the United States is a Party |